The ribs forward of the main spar are all in place, as well as the leading edge strips. The alignment and dimensions all check out, so before long, I'll be putting in the trailing edge ribs, as planting time on the farm allows.
My current fun task is to put in the corner blocking on the center ribs. These help to distribute loads to the skin. At the same time, I'm framing up the access doors forward of the main spar. There are four of these. The photo shows the door for access to the landing gear hardware and a grease zerk. There are also two doors for the aileron bellcranks.